Swing.



W. KOLLER.

SWING.

APPLICATION FILED MAY 8, 1912.

1,045,1 56, Patented Nov. 26, 1912.

Arrmvvzy COLUMBIA ILANOGRAPII co., WASHINGTON, u. c.

UNITED STATES PATENT onnrcs.

WILHELM KOLLER, OF CHICAGO, ILLINOIS, ASSIGNOR OF FORTY-FIVE ONE-HUN- DREDTHS TO OTTO MARX AND FIVE ONE-HUNDBEDTHS TO WILHELM KOLLER, JR.,

BOTH OF CHICAGO, ILLINOIS.

swine.

Specification of Letters Patent.

Patented Nov. 26, 1912.

Application filed May 8, 1912. Serial No. 695,839.

To all whom it may concern: 7

Be it known that I, WILHELM KoL ER, a subject of the Emperor of Germany, and a resident of Chicago, Illinois, have invented certain new and useful Improvements in Swings, of which the following is a specification.

The essential objects of this invention are to provide a swing of the type in which a seat is suspended from a suitable framework with means for assisting the operator to start the swing from the dead or inoperative position, and with means to keep the swing in motion after it has once been started.

In the drawings, Figure 1 is a side view of the swing, and Fig. 2 is an end view taken at right angles to the view of Fig. 1.

The supporting framework consists of uprights 1 and suitable cross pieces 2. From the cross pieces the plates 3 depend, being fastened to the cross pieces by bolts 4. There is one of said bolts 3 on each side of the swing and the rod or shaft 5 extends from one member 3 to the other, being preferably secured to plates 3 so as not to be revoluble therein.

The seat or car 6 is suspended from the hangers 7, being pivotally connected thereto at 8. The hangers 7 are secured to the yokes 9 which unite in arms 10. The upper ends of arms 10 are provided with a circular perforation through which the shaft 5 is adapted to pass; hence, the arms 10 are adapted to have a rotary reciprocatory motion upon the fixed shaft 5 as an axis. In order to provide as great a degree of strength as possible the perforated end of arm 10 is reinforced by an iron or steel band or strap 11 held in place by bolts 12. Suitable braces 13 keep the hangers 7 spaced apart a proper distance from each other.

The cross-pieces 2 and uprights 1 are braced by braces 14:. One of the members 2, which extends lengthwise of the swing or parallel to the direction in which the swing moves, bears brackets 15 at its ends, sheaves 16 being journaled in said brackets. The hangers 7 are cross-connected by a yoke 17 which is provided with arms that extend outwardly beyond the hangers. Sheaves 18 are mounted upon said member 17 in the space between said hangers, and other sheaves 19 are secured to the car 6, prefer 18, and 19 in the manner and sequence most clearly shown in Fig. 1 of the drawings. The rope 20 passes successively over the right-hand sheave 16, over the left-hand sheave 18, over the left-hand sheave 1.9, over the right-hand sheave 18, over the lefthand sheave 16, and thence to the right-hand end of the member 17, it being understood that the place of beginning is the left-hand end of the member 17. If a person sitting in the car 6 gives a downward pull on the left-hand length of the rope 20, it is obvious that said pull will be communicated to the left end of the member 17 and will pull said member 17 toward the right, Fig. 1. If the operator pulls the right-hand length of the rope 20 when sitting in the car, the member 17 will be pulled toward the left. In this manner, by pulling first one part of the rope 20 and then the other, the swing can be started from the dead position without making it necessary for any person to push the car from the outside.

A helical spring 21 has one end secured to the shaft 5 and its other end to the brace 14, and another helical spring 22 is similarly secured, said springs being coiled in opposite direct-ions. If the swing moves toward the right, Fig. 1, for example, it will move subject to the resistance of spring 22 but will be assisted by spring 21. If the spring moves in the reverse direction it will move against the resistance of spring 21 and with the assistance of spring 22. In this manner the springs constantly act upon the swing when the same is in motion and tend to keep the swing constantly moving. The spring 21 is stronger than the spring 22, this construction being desirable in order that the compression of one spring will not exactly counterbalance the expansion of the other.

The cable or rope 20 may directly engage the member 17, or the rope 20 may be connected with a link or hook 23 as shown in Fig. 2.

Many changes in details of construct-ion may be made without departing from the scope of the invention or of the claim.

I claim as my invention:

A swing comprising a framework, a swinging body adapted to swing back and forth in said framework, apair of sheaves disposed exterior to said swinging body, a pair of sheaves carried upon said swinging body, a second pair of sheaves carried upon said swinging body at a point below said firstmentioned pair, and a rope, the ends of nesses.

WILHELM KOLLER. Witnesses:

R0131. KURTZ, AUG. KURTZ.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. C. e 

